A high power narrowband interference rejection technique using multi-stage canceller for DS-CDMA system

Author

Kitano, Toyokazu ; Hara, Shinsuke ; Morinaga, Norihiko

Author_Institution

DAIHEN Corp., Osaka, Japan

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

693

Abstract

In order to improve spectral efficiency, CDMA overlay, which means co-existence of wideband and narrowband signals in the same frequency band, has been considered. However, signals from existing narrowband systems are not necessarily transmitted with a low enough power level not to damage DS-CDMA (direct sequence code division multiple access) signals, so an efficient rejection technique for narrowband interferers is required for successful CDMA overlay. In this paper, we propose a canceller to reject such high power narrowband interference for the DS-CDMA system and show the rejection performance obtained from the computer simulation

Keywords

code division multiple access; interference suppression; radio receivers; radiofrequency interference; spread spectrum communication; CDMA overlay; DS-CDMA system; direct sequence code division multiple access; high power narrowband interference rejection technique; multi-stage canceller; narrowband signals; spectral efficiency; wideband signals; AWGN; Additive white noise; Bandwidth; Computer simulation; Interference cancellation; Multiaccess communication; Narrowband; Radio frequency; Signal processing; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th

Conference_Location

Atlantic City, NJ

ISSN

1090-3038

Print_ISBN

0-7803-7005-8

Type

conf

DOI

10.1109/VTC.2001.956859

Filename

956859